There are currently two available ranges that we can use for the development purpose. Both have some characteristics to keep in mind as below:

• RSP Object Range (ID range 1,000,000-69,999,999)

This object range is for the RSP (Registered Solution Program) but effective 01 Oct 2022, the RSP program has been replaced with Universal Code Initiative. Hence it is not recommended to use this range for app development.

• App Object Range (ID range 70,000,000-74,999,999)

This object range was designed just for apps in the Microsoft commercial marketplace to be used in Business Central online and recommended for the app development.

The below listed are different object ranges which are available in Business Central.

0-49,999

This range is assigned to Business Central base app functionality and must not be used in extensions or customizations.

50,000-99,999

This range is for customizations. For Business Central online, a partner can develop an extension tailored to the individual tenant to fit the requirements.The partner develops the extension either by using a sandbox tenant or by obtaining a Docker image. Once the development is done, the extension can be deployed to the individual tenant. Also, use this range as part of training and similar, such as if you're using a sandbox tenant or a build of Business Central on Docker.

100,000-999,999

The objects in this range are designed when the Microsoft team localizes Business Central for a specific country or region. These objects can not be used by partners.

1,000,000-69,999,999

This object range is intended for the Registered Solution Program (RSP). The partner can choose to use this range for developing extensions that can be used in Business Central online or on-premises.

70,000,000-74,999,999

Partners can obtain this range for extensions for Business Central online to develop app.

Download the Business Central licensing guide.

https://www.microsoft.com/licensing/docs/view/Licensing-Guides